Please confirm the product information is correct before ordering1. Material: TPU2. The design hole position is accurate and fits the watch3. Hollow design on the back, does not block the heart rate sensor, does not block the buttons4. Comfortable to wear5. All-inclusive protection design, effectively avoiding daily collision and friction6. Easy to install, will not cause damage to the watch7. Note: The product has only the case, not the main bodyWe have good after-sales service. If you have any questions about our products, you can contact us and we will reply to you within 12 hours.